56results about How to "Trigger sensitive" patented technology

The invention discloses a handheld electric tool with an improved trigger, which comprises a tool body, a motor, a switch, an operating component, a main handle and an auxiliary handle, wherein the motor is disposed inside the tool body, the switch inside the tool body is used for controlling operation of the motor, the operating component fixedly connected to the tool body is driven by a motor, and the main handle and the auxiliary handle are disposed on the tool body. The auxiliary handle comprises an auxiliary handle holder, an auxiliary handle cover board, and a trigger disposed between the auxiliary handle holder and the auxiliary handle cover board, wherein the trigger is connected in a surrounding manner. The switch of the handheld electric tool can be triggered in each of the leftward, rightward and middle directions of the auxiliary handle, and the handheld electric tool is simple in overall structure, has fewer parts, and is easy in assembly and more flexible and more reliable in triggering. In addition, the auxiliary handle as an independent component can be separated from the tool body to be packed, so that load can be improved greatly.

The invention discloses a method and a system for measuring aspiratory flow velocity by a differential pressure type sensor. The method comprises the following steps: sensing a flow velocity signal bya sensing device and converting the flow velocity signal into a level signal; comparing the level signal with a predetermined level by a comparer; sampling the level signal by a sampler under the condition that the level signal is more than the predetermined level so as to acquire an AD sampling signal, and calculating the current flow velocity by a first processor according to the AD sampling signal; amplifying the level signal by an amplification circuit under the condition that the level signal is less than the predetermined level; and sampling the amplified level signal by the sampler soas to acquire the amplified AD sampling signal, and calculating the current flow velocity by a second processor according the amplified AD sampling signal.

The invention discloses an overvoltage protective device for an internet-of-things radio frequency emitter. The overvoltage protective device comprises an altering current power source, a direct current power source, a switch, a transformer, a rectifier tube, a voltage stabilizing device, an optocoupler relay, an altering current contactor, electromagnetic relay, a first diode, a second diode, a triode, a light-emitting diode, a potentiometer, a voltmeter, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor. The overvoltage protective device for the internet-of-things radio frequency emitter has the advantages of being simple in circuit, sensitive to trigger, less in adopted element, small in size, easy to manufacture and low in cost and meanwhile has the function of protecting a preceding-stage power amplifier of the internet-of-things radio frequency emitter many times.

The invention discloses a gas leakage alarm device for industrial waste gas treatment, comprising an alternating-current power supply, a transformer, a first diode, a second diode, a third diode, a fuse, a first capacitor, a second capacitor, a third capacitor, first to eleventh resistors, a first light-emitting diode, a second light-emitting diode, a voltage regulator, a gas sensor, a potentiometer, a relay, a first operational amplifier, a second operational amplifier, a three operational amplifier, a first triode, a second triode, and a loudspeaker. The gas leakage alarm device for industrial waste gas treatment of the invention has the advantages of simple circuit structure, sensitive triggering, fewer elements, small size, low cost, easy manufacture, convenient carrying, high degree of automation and timely alarm, and can effectively control the opening of an external exhaust fan to achieve the purpose of exhausting harmful gases.

The invention relates to the technical field of cosmetics, and discloses an automatic cosmetic storage device based on the electromagnetic induction principle. The device comprises a shell I and a shell II, wherein a partition plate is fixedly connected to the exterior of the shell I, a connecting rod is movably connected to the interior of the partition plate, an N pole is movably connected to the interior of the shell I, an S pole is movably connected to the interior of the shell I, a spring I is movably connected to the interior of the shell II, a sliding rail is movably connected to the top of the spring I, a buckle is movably connected to the interior of the sliding rail, and a spring II is movably connected to the interior of the sliding rail; under the interaction of the shell I, the shell II, the partition plate, the connecting rod, the N pole and the S pole, when a user sits outside the shell I, a cosmetic carrying table behind can be triggered to ascend, and when the user leaves, the cosmetic carrying table can also be a triggering condition for assisting in closing, so that the device better conforms to the actual use condition of the user, and the triggering is more sensitive.

The invention discloses a fire-fighting sprinkler head. The fire-fighting sprinkler head comprises a body and a choke plug. A base is arranged on the lower end of a frame of the body, a splashing disc is arranged on the lower end of the base, the choke plug is in seal connection with the water outlet end of the body, a releasing device is arranged at the position, between the choke plug and the base, on the body, and comprises a supporting plate, one end of the supporting plate is connected with the lower end of the choke plug, the other end of the supporting plate is rotatably connected with a pressing plate, the end, close to the choke plug, of the supporting plate is connected with one end of a glass ball, the other end of the glass ball is connected to the end, away from the supporting plate, of the pressing plate, the pressing plate is supported by an adjusting screw screwed in the base, the eccentric distance exists between the rotating center on the connecting position of the supporting plate and the pressing plate and the center of the axis of the adjusting screw. The advantages of being stable in bearing, sensitive in temperature inducing, high in trigger speed, and convenient to assemble are achieved.

The invention relates to a bedding for night urinary control training, which comprises a bed sheet, a coverlet and an alarm component. The bed sheet is provided with a bed sheet body and a bed periphery, the bed sheet body comprises a surface layer, a water absorption layer and a bed sheet waterproof layer, the water absorption rate of the water absorption layer is larger than or equal to 200%, and the water absorption layer is made from materials with drip diffusion time larger than or equal to 10 s and smaller than or equal to 20 s; the bed periphery is fixed on the periphery of the bed sheet body, and elastic bands are sewn on the edge of the bed periphery; the coverlet comprises a top layer, a coverlet waterproof layer and a bottom layer; the alarm assembly comprises a wire, a power supply, a switch, an audible and visual alarm and a shell, wherein a trigger wire of the wire is fixed in the water absorption layer; and the surface layer, the top layer and the bottom layer are all made of cotton. The bedding for night urinary control training is convenient to replace, will not pollute other bedding articles, and is beneficial for patients and family members to insist in awakening treatment for a long time; sufficient time can be provided for a patient to be in contact with wet urine, and micturition reflex of the brain is established. The triggering is sensitive, and the awakening effect can be ensured.

The invention discloses an air conditioner and an anti-freezing control method thereof, and belongs to the technical field of air conditioners. The control method comprises the following steps of obtaining the temperature of a refrigerant inlet pipe and the temperature of a middle pipe of an indoor heat exchanger when the air conditioner operates in a cooling mode; determining whether the preset anti-freezing conditions are met or not according to the minimum pipe temperature between the temperature of the refrigerant inlet pipe and the temperature of the middle pipe of the indoor heat exchanger; in response to the minimum pipe temperature meeting the preset anti-freezing conditions, determining and controlling the air conditioner to be switched to a corresponding anti-freezing mode according to the minimum pipe temperature, wherein if the minimum pipe temperature meets a first temperature condition, the anti-freezing mode comprises the reduction of the frequency of a compressor; if the minimum pipe temperature meets a second temperature condition, the anti-freezing mode comprises the starting of an electric auxiliary heating device of an indoor unit; if the minimum pipe temperature meets a third temperature condition, the anti-freezing mode comprises the control to the shutdown of the air conditioner; and the temperature conditions corresponding to different minimum pipe temperatures are different. The air conditioner and the anti-freezing control method provided by the invention can more sensitively trigger own anti-freezing protection in time.

The invention relates to the technical field of building design, and discloses a casement window automatic closing device based on capacitance sensing. The casement window automatic closing device comprises a frame and a window body. An induction assembly is movably connected in the frame. An electromagnet is fixedly connected in the frame. A sliding rail is fixedly connected in the frame. A sliding rod is movably connected in the sliding rail. The outer portion of the sliding rod is movably connected with a first spring, and the outer portion of the first spring is movably connected with a connecting rod. Under the interaction of the electromagnet, the sliding rail, the sliding rod, the first spring, the connecting rod, an iron block, a first gear, a second gear and a chain, it can be guaranteed that the device can achieve automatic window closing when it is rains, triggering is sensitive, the arrangement will meet use of actual use, the situation that severe economic losses of electric appliance damage and the like are caused due to the fact that rainwater enters rooms is greatly avoided, and the device is more suitable for regions with weather changing rapidly.

The invention discloses a full-automatic fishing rod with an assisting power triggering device, which is provided with a kinetic energy storage support rod and an assisting power triggering mechanism, wherein the support rod and the triggering mechanism are arranged at the upper part of the fishing rod, so a user can obtain great visibility, flexible triggering and easy operation; the full-automatic fishing rod can be used together with various modes of handspikes, sea fishing rods or shore fishing rods, and is not only an eye-pleasing full-automatic fishing rod with bidirectional assisting power triggering, but can also be made into an individual fishing rod; the fishing effect of the fishing rod rivals that of the Taiwan fishing method owing to the assisted power in both pulling triggering and returning triggering; and the full-automatic fishing rod also has the function of automatic rod holding.

The invention relates to a switch cabinet. The invention discloses a high-voltage switch cabinet. The switch cabinet comprises a pressure relief mechanism, the pressure relief mechanism comprises a pressure relief base fixed on the inner surface of the upper top plate; the pressure relief base comprises a cylindrical pressure relief base side wall with the upper end and the lower end open and a pressure relief mounting base located at the lower end of the pressure relief base side wall and located in the pressure relief base side wall. The pressure relief mounting base is connected with the inner surface of the pressure relief base side wall through a plurality of connecting rods evenly arranged around the axis of the pressure relief base side wall. A pressure relief plate is installed atthe upper end of the side wall of the pressure relief base, a pressure relief channel is formed in the middle of the pressure relief plate, a pressure relief plug is arranged in the pressure relief channel, an electromagnet capable of attracting the pressure relief plate is installed on the upper end face of the side wall of the pressure relief base, and a longitudinally-arranged compression spring is installed between the lower surface of the pressure relief plate and the pressure relief installation base. The pressure relief mechanism is arranged on the switch cabinet, pressure relief can beconducted on gas with different pressures, triggering is sensitive, and safety can be effectively guaranteed.

The invention discloses a mouse trapping device. The mouse trapping device comprises a bottom plate, wherein the bottom plate is connected with a front side plate, a right side plate and a rear side plate; the front side plate, the right side plate and the rear side plate are connected with an upper cover plate; a box body with a left-side opening is formed by the upper cover plate, the bottom plate, the front side plate, the right side plate and the rear side plate; the upper end of the left-side opening of the box body is in rotary connection with a rotary shaft; one side of the rotary shaft is fixedly connected with a door plate; one side, opposite to the door plate, of the rotary shaft is fixedly connected with a door plate connecting rod; the box body is provided with an elastic part which is used for driving the door plate to rotate all the time so as to seal the opening of the box body; the upper cover plate is provided with a locking assembly which is used for locking a free end of the door plate connecting rod so as to enable the door plate to be at an open state; the box body is internally further provided with a triggering assembly which is used for driving the locking assembly to unlock the door plate connecting rod so as to close to the door plate. The mouse trapping device disclosed by the invention has the advantages of simple structure, sensitivity in triggering, low cost, convenience for installation and safety and reliability.

The invention discloses a tool for preventing a carbon brush from direction error in installation. The tool comprises a regulator, a carbon brush length control block, a PCB trigger plate and an alarm device; and the carbon brush is mounted on the regulator. The tool is characterized in that the carbon brush length control block is mounted on the regulator, the PCB trigger plate is mounted on the carbon brush length control block, the alarm device is arranged at the right end of the regulator and internally provided with an LED, a piezoelectric active buzzer and a battery, and the PCB trigger plate is connected with the LED and the piezoelectric active buzzer via leads. The tool has the advantages that the alarm device is triggered no matter which position of the PCB trigger plate is pressed when the carbon brush is mounted reversely, pseudo-connection does not occur, and during use, the tool is sensitive for triggering, safe and reliable.

The invention discloses a full-automatic fishing rod with an assisting power triggering device, which is provided with a kinetic energy storage support rod and an assisting power triggering mechanism, wherein the support rod and the triggering mechanism are arranged at the upper part of the fishing rod, so a user can obtain great visibility, flexible triggering and easy operation; the full-automatic fishing rod can be used together with various modes of handspikes, sea fishing rods or shore fishing rods, and is not only an eye-pleasing full-automatic fishing rod with bidirectional assisting power triggering, but can also be made into an individual fishing rod; the fishing effect of the fishing rod rivals that of the Taiwan fishing method owing to the assisted power in both pulling triggering and returning triggering; and the full-automatic fishing rod also has the function of automatic rod holding.

The invention belongs to the technical field of network communication, and particularly relates to portable vehicle-mounted network communication equipment which comprises a base; a signal receiver is mounted on the upper side of the base; a baffle is hinged to the top of the signal receiver through a torsional spring; a control block is fixedly connected to the upper side of the base; a mounting groove is formed in the control block; a telescopic assembly is arranged in the mounting groove; the upper side of the base is rotationally connected with a guide wheel through a support. The lower side of the baffle is fixedly connected with a connecting rope, and the other end of the connecting rope bypasses the guide wheel and is fixedly connected with the telescopic assembly. In rainy days, the telescopic assembly is manually started to loosen the connecting rope, and then under the action of the torsional spring, the baffle rotates to the position above the signal receiver and shields the signal receiver, so that the effect of shielding the signal receiver from rain is achieved, and the problem that the network communication equipment is corroded and damaged due to the fact that the network communication equipment is exposed in rainwater for a long time is avoided, unnecessary loss is reduced, and it is ensured that normal working performance can be maintained subsequently.

The invention discloses an air conditioner and its anti-freezing control method, belonging to the technical field of air conditioners. The control method includes: obtaining the refrigerant inlet pipe temperature and middle pipe temperature of the indoor heat exchanger when the air conditioner is operating in cooling mode; Freezing conditions; in response to the minimum tube temperature meeting the preset anti-freezing conditions, determine and control the air conditioner to switch to the corresponding anti-freezing mode according to the minimum tube temperature; wherein, if the minimum tube temperature meets the first temperature condition, the anti-freezing mode includes reducing the compression The frequency of the machine; if the minimum tube temperature meets the second temperature condition, the anti-freezing mode includes controlling the shutdown of the air conditioner; different minimum tube temperatures correspond to different temperature conditions. The air conditioner and its anti-freezing control method provided by the present invention can trigger self-anti-freezing protection in a more timely and sensitive manner compared with the method of judging anti-freezing by a single coil temperature in the prior art.

Provided is a speed-limiting braking system for a hanging elevator. The speed-limiting braking system for the hanging elevator comprises a support, a speed control system and a braking system. The speed control system and the braking system are both mounted on the support. The speed control system adopts a centrifugal pin to work under the action of centrifugal force and drives the braking system to run when speed exceeds limited speed. According to the speed-limiting braking system for the hanging elevator, the speed control system and the braking system are both directly arranged on the support of an elevator box body, the defect that the remote control of a speed governor and the remote control of a safety gear cannot be synchronous and timely is avoided, and the defect that the speed governor and the safety gear are out of operation is avoided. The speed-limiting braking system for the hanging elevator is sensitive in triggering, safe and reliable, if only the speed exceeds a preset safety value, the elevator is made to be stopped, and when a set spring is out of operation, the support ejects out the centrifugal pin, the braking system is turned to jam the elevator to stop running, and danger is prevented from occurring.

The invention relates to a motor balancing mount including a support plate, a U-shaped pneumatic cylinder, the support plate corresponds to the upper end of the piston rod arranged on the support armsat both ends of the U-shaped pneumatic cylinder, the lower end of the piston in the supporting arms of the two ends of the U-shaped pneumatic cylinder is provided with a vibration damping spring, theU-shaped pneumatic cylinder comprises left and right mutually independent units with electromagnetic ventilation valves, A low end of that support plate close to the middle part of the U-shaped pneumatic cylinder is provided with a toggle rod, The lower end of the toggle bar is provided with a toggle plate which is inclined, a sliding bar mechanism is arranged at a position corresponding to the toggle plate, a travel switch fixed on a U-shaped pneumatic cylinder is arranged at one end of the sliding bar mechanism opposite to the toggle plate, and the travel switch is connected with a corresponding electromagnetic ventilation valve for control. The invention drives the toggle plate through the toggle lever, and then drives the slider mechanism to trigger the stroke switch to realize the motor height limitation, which is sensitive to triggering, precise to position limitation, convenient and quick to adjust and wide in use range.

The invention provides a traffic guidance platform capable of automatically protecting a human body during vehicle collision, and relates to the technical field of traffic guidance tools. The problems that when an existing traffic guidance platform is used and encounters vehicle collision, a protection device cannot be automatically controlled to move, and the protection device cannot be automatically triggered are solved. The traffic guidance platform comprises a main body, a mounting piece, a fixing piece and a limiting piece; the main body is of a hexagonal structure, and the bottom of the outer side of the main body is of an arc-shaped structure; and the mounting piece is mounted at the top end of the main body. When the device encounters vehicle collision, the limiting piece can be stressed to move, then limiting of a fixing plate is relieved, the fixing plate can receive spring power to retract inwards, then limiting of an inserting plate is relieved, the inserting plate can receive the spring power to drive a protection piece to move upwards quickly, the protection piece can protect the human body, the device can automatically trigger a protection structure, and the human body is prevented from being damaged.

The invention provides a device for suspending and releasing a heavy object, and the device comprises a heavy object falling cavity, wherein the top of the heavy object falling cavity is provided witha cavity cover, and the top of the cavity cover is provided with an installation seat in a bulged manner. The installation seat is horizontally provided with a threaded through hole, and the interiorof the threaded through hole is horizontally provided with a plunger cavity. The device also comprises a sliding block which is disposed on the heavy object falling cavity, and a first side surface of the heavy object falling cavity is provided with a sliding rail. The sliding block is slidingly disposed on the first side surface of the heavy object falling cavity through the sliding rail. A buoyancy transmission device is used for transmitting a buoyancy force to the sliding block, and controlling the operation state of the sliding block. The device is wide in application range, is suitablefor various types of liquid, is small and exquisite in size, is simple and flexible in structure, is precise in control, and is high in safety.

A metal soft tube flexural oscillations tester for conducting life test is provided, which comprises a stander, a control cabinet, an electric control unit and a displaying unit. The technical pointsare that: a transmission oil cylinder, a rotating axle and a transmission arm are arranged in the stander, which are connected with an arm swinging link gear to compose the actuating unit of the equipment. and the hydraulic pressure machine set drive motor power structure drives the equipment to movement swinging arm; the two ends of the metal soft tube are installed on a fixing pressing base anda dynamic displacement compensation mechanism, and the metal soft tube movement trail is adjusted by an arc limiting structure; one end of the metal soft tube is connected fixedly with the arc limiting structure to realize bending and double-direction swinging function. Through an electric control unit, a starting dynamo, the alternate invariable displacement structure composed of an eccenter, a connecting bar, a linear guide and a movement end connected with base is driven by a reducer driven by electric engine, which makes the metal soft tube fixed on the connecting base of the moving end realize the curvature movement of invariable displacement.

The invention discloses an elevator overspeed protection device. The device drives a centrifugal box to rotate through a guiding wheel, and when an elevator car overspeeds, a centrifugal force machineis used for triggering a locking unit to act on a speed reduction rail, and the car is decelerated or stopped; through the arrangement of the independent guiding wheel and a guiding rail, the car ismore stable during braking deceleration, and car swinging due to uneven stress is avoided; according to the device, introduction of an electronic element is avoided, control is conducted through mechanical transmission, and insecurity of the electronic element is avoided; and meanwhile, triggering is rapid and sensitive, and a good braking effect is achieved.

The invention relates to the technical field of electric vehicles, and discloses an electric vehicle tilting prevention device based on the electromagnetic induction principle. The device comprises ashell I and a shell II, a connecting plate is movably connected to the interior of the shell I; a non-Newtonian fluid is movably connected to the interior of the first shell, a movable plate is movably connected to the interior of the first shell, an N pole is movably connected to the interior of the first shell, an S pole is movably connected to the interior of the first shell, a connecting rod is movably connected to the interior of the first shell, a sliding rod is fixedly connected to the interior of the second shell, and a movable rod is movably connected to the exterior. Under the interaction of the shell I, the connecting plate, the non-Newtonian fluid, the movable plate, the N pole, the S pole and the connecting rod, when the electric bicycle turns on one side, the anti-rollover device in the bicycle body can be triggered to be started through the contact between the part, protruding out of the bicycle body, of the handlebar and the ground, and the triggering is more suitable for being used under the actual condition.

The invention discloses a construction safety warning sign applied to engineering project management. The construction safety warning sign comprises a base, a column body and a warning plate, the baseand the warning plate are arranged at the upper side and the lower side of the column body respectively, the base is fixedly connected with the column body, the warning plate is rotationally connected to the upper end of the column body, and the column body is of a hollow structure; and a first motor is fixedly connected to the inner side wall of the upper portion of the column body, an output shaft of the first motor is fixedly connected with a winding roller, and the output shaft of the first motor is rotationally connected with the inner wall of the column body through a bearing. The construction safety warning sign has the advantages that a warning lamp is arranged on the warning plate, when a worker carries a large material to get close, steel in the material can generate magnetic attraction force with a balance weight ball, the balance weight ball deviates from the vertical direction and gets close to the side face, when the balance weight ball makes contact with the inner wallof an annular sleeve, the warning lamp is powered on to give a flash alarm, the flash alarm has a higher degree of identification, and therefore the occurrence of dangerous situations is avoided.

The invention discloses an air conditioner and its anti-freezing control method, belonging to the technical field of air conditioners. The control method includes: acquiring the refrigerant inlet pipe temperature and middle pipe temperature of the indoor heat exchanger when the air conditioner is operating in cooling mode; calculating the temperature difference between the refrigerant inlet pipe temperature and the middle pipe temperature; responding to the temperature difference being less than or equal to a preset difference threshold , taking the average temperature of the refrigerant inlet pipe temperature and the middle pipe temperature as the reference temperature; in response to the temperature difference being greater than the preset difference threshold, taking the minimum pipe temperature among the refrigerant inlet pipe temperature and the middle pipe temperature of the indoor heat exchanger as a reference Temperature: determine whether the preset anti-freezing condition is met according to the reference temperature; in response to the reference temperature meeting the preset anti-freezing condition, determine and control the air conditioner to switch to the corresponding anti-freezing mode according to the reference temperature; temperature conditions corresponding to different reference temperatures different. The air conditioner and its anti-freezing control method provided by the present invention can more timely and sensitively trigger its own anti-freezing protection.

The invention discloses an air conditioner and its anti-freezing control method, belonging to the technical field of air conditioners. The control method includes: obtaining the temperature of the refrigerant inlet pipe and the temperature of the middle pipe of the air conditioner; comparing the numerical values ​​of the temperature of the refrigerant inlet pipe and the temperature of the middle pipe and calculating the temperature difference between the temperature of the refrigerant inlet pipe and the temperature of the middle pipe; The temperature of the middle pipe takes the temperature of the refrigerant inlet pipe as the reference temperature; in response to the temperature of the refrigerant inlet pipe being greater than or equal to the temperature of the middle pipe and the temperature difference is greater than or equal to the preset difference threshold, the temperature of the middle pipe is used as the reference temperature; When the temperature of the refrigerant inlet pipe is greater than or equal to the temperature of the middle pipe and the temperature difference is less than the preset difference threshold, the temperature average of the refrigerant inlet pipe temperature and the temperature of the middle pipe of the indoor heat exchanger is used as the reference temperature; in response to the reference temperature meeting The preset anti-freezing conditions control the air conditioner to switch to the anti-freezing mode. The air conditioner and its anti-freezing control method provided by the present invention can more timely and sensitively trigger its own anti-freezing protection.